19 uses of WATCHDOG_WARNING

aggregator_parse_feed in drupal/core/modules/aggregator/aggregator.parser.inc
Parses a feed and stores its items.
ajax_get_form in drupal/core/includes/ajax.inc
Gets a form submitted via #ajax during an Ajax callback.
authorize_access_denied_page in drupal/core/authorize.php
Renders a 403 access denied page for authorize.php.
CommentFormController::save in drupal/core/modules/comment/lib/Drupal/comment/CommentFormController.php
Overrides Drupal\Core\Entity\EntityFormController::save().
DBLogTest::getSeverityConstant in drupal/core/modules/dblog/lib/Drupal/dblog/Tests/DBLogTest.php
Gets the watchdog severity constant corresponding to the CSS class.
DefaultFetcher::fetch in drupal/core/modules/aggregator/lib/Drupal/aggregator/Plugin/aggregator/fetcher/DefaultFetcher.php
Implements Drupal\aggregator\Plugin\FetcherInterface::fetch().
drupal_cron_cleanup in drupal/core/includes/common.inc
Shutdown function: Performs cron cleanup.
drupal_cron_run in drupal/core/includes/common.inc
Executes a cron run when called.
drupal_error_levels in drupal/core/includes/errors.inc
Maps PHP error constants to watchdog severity levels.
drupal_xml_parser_create in drupal/core/includes/unicode.inc
Prepare a new XML parser.
ExceptionController::on403Html in drupal/core/lib/Drupal/Core/ExceptionController.php
Processes an AccessDenied exception into an HTTP 403 response.
ExceptionController::on404Html in drupal/core/lib/Drupal/Core/ExceptionController.php
Processes a NotFound exception into an HTTP 404 response.
locale_translate_batch_finished in drupal/core/modules/locale/locale.bulk.inc
Finished callback of system page locale import batch.
locale_translate_edit_form_validate in drupal/core/modules/locale/locale.pages.inc
Form validation handler for locale_translate_edit_form().
openid_verify_assertion_nonce in drupal/core/modules/openid/openid.module
Verify that the nonce has not been used in earlier assertions from the same OpenID provider.
theme in drupal/core/includes/theme.inc
Generates themed output.
update_access_denied_page in drupal/core/update.php
Renders a 403 access denied page for update.php.
user_user_operations in drupal/core/modules/user/user.module
Implements hook_user_operations().
_locale_rebuild_js in drupal/core/modules/locale/locale.module
(Re-)Creates the JavaScript translation file for a language.